Hinge



Nov. 25, 1930. EVANS 1,783,076

Filed Oct. 19, 1928 29 4 w INVENTOR ATTORNEYS Patented Nov.- 25, 1930 r ENT 1 OFFICE WILLIAM LEwIs Evans, of WASHINGTON, INnrANA amen Application filed October 19, 1928. Serial No. 313,529.

This invention relates to hinges such as 7 those used on vanishing doors of the type shown in my U. S. Patent Nos. 1,367,954; 1,412,107; 1,412,108; 1,412,109; 1,407,739;

1 1,107,740; 1,407,790; and 1,489,633, and,

among otherobjects, aims to provide improved strong and durable hinge joints which are accurately fitted and canbe relatively low cost.

Inthe accompanying drawings, c Fig. 1s a top plan viewshowing a'commade at a pound floor or ceiling hinge having the pre fer-red form of hinge joints; 1

Fig. 2 isasectional view, drawn on an enlarged scale and taken on the line 22 of Fig. 1;

Fig. 3 is a top plan View showing another type of compound provements. 7

Compound hinges hkethose shown inmy hinge embodying the imaforesaid patents have not been sufficiently strong to support extra heavy doors without permitting them to sag. It has also been found that ordinary hinge joints, unless they are very accurately fitted, are so loose that liquid will enter them during the plating process and thereby bind the hinge pins in their sockets. This invention aims to provide improvedaccurately fitted joints or terminals and sockets constructed and arranged to prevent the water from entering the joints whenthe hinges are being plated and adapted to support extra heavy doors without sagging. 1 1 b Referring to Fig. 1, the present invention is there embodied in a compound floor hinge of the same general type-as that shown in my aforesaid Patent No. 1,489,633 which comprises a door plate 10, a pair of round floor plates or feet 11 and Z-shaped arms 12 1 hingedly mounted in terminal sockets in said plate and said feet.

Herein the plates are the castings oi" brass,

V the door plate having drilled and reamed terminal sockets 13 at its opposite ends. Similar terminal sockets 14 are provided in the upstanding bosses 15 on the feet and terminate in enlarged recesses 16 in the bases, these feet being quite similar. to those shown in my aforesaid patent.

In accordance with thepresent-invention,

mately two thousandths (.002) of an inch less than that 0f the reamed sockets to' afford just enough clearance to permit the hinges towork freely. After the terminals are reduced, they are trimmed or cut off to the proper lengths. i

To provlde thrust bearings for the hinge 1 arms 12and to divide the load between upper and lower hinges, pairs of washers 19 are shown as being fitted and secured on the terminals at the opposite ends of the socket members. All of the Washers are conveniently the same and are preferably punched outso their openings fit the terminals very closelyf The shoulder, washers are. first pushed on the intles; then, the terminals are placed in their respective sockets; the end washers are then inserted on the projecting ends of the terminals and secured thereon by spinning the extreme ends of the terminals to provide enlarged headsQO. The spinning operation is advantageous because it does not upset the terminals within the sockets and cause them to bind. Moreover, the ends can be spun until the bearing faces of each pair of the washers barely clear the ends of the socket members but without binding. This construction also serves to prevent water from entering the bearings during the plating process. 7 7 1 In Fig. 3 there is shown a compound hinge 12 are hinged by means of the same type of LED 1 hinge oints as those in the door plate shown in Fig. 1.

Practical use of hinges embodying this in vention has demonstrated that they Work very easily without binding; that they will support very heavy doors without permitting them to sag and they will. not easily break or get out of order. l urther a Very great economy in their manufacture is made possible because die casting. and stamping Operations are utilized.

Obviously, the present lnvention is not restricted to the particular embodiment thereof herein shown and described.

YVhat I claim is 1. In a multiplepivot hinge of the character described, plate members providing means to secure the hinge to a door; vertical bearing sockets drilled through said plate members and of uniform diameter throughout their lengths; Z-shaped bars having vertical, parallel arms; reduced terminals formed on said arms extending through the bearing sockets and presenting shoulders at their inner ends; closely fitting washers on the reduced terminals between the shoulders and the bearing sockets providing end thrust bearing elements; closely fitting Washers on the outer ends of said terminals also providing end thrust bearing elements; and heads formed on the ends of said terminals providing integral shoulders for the last mentioned washers and holding the Washers in close contact with the ends of the bearing sockets.

2. In a multiple pivot hinge of the character described, an elongated plate adapted to be secured to a door; spaced vertical bearing sockets drilled through the plate adjacent to its ends; Z-shaped bars having vertical parallel arms; reduced terminals on one arm of each bar projecting through and closely fitted in the bearing sockets; shoulders at the inner ends of said reduced terminals; plate washers closely fitted on said terminals between the inner ends of said shoulders providing end thrust bearing elements to sustain a portion oi? the weight of the door; washers also closely fitted on the end portions of saidtcrlninals to provide other end thrust bearing elements; spun heads on the extreme ends of said ter minals to hold said arms assembled on the plate; and supporting members having sin1ilar socket bearings secured to the other arms of said bars.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature.

WILLIAM LEWIS EVANS. 

